氯化钙溶液喷雾闪蒸再生特性模拟及试验分析

张昊; 申凯; 赖艳华; 崔琳; 董勇

doi:10.11949/j.issn.0438-1157.20181274

您当前的位置：

首页 >

文章列表页 >

氯化钙溶液喷雾闪蒸再生特性模拟及试验分析

能源和环境工程 | 更新时间：2026-07-24

- 氯化钙溶液喷雾闪蒸再生特性模拟及试验分析
- Simulation and experimental analysis of spray flash regeneration characteristics of CaCl₂ solution
- 化工学报 2019年70卷第6期页码：2269-2278
- 作者机构：
  
  1.山东大学能源与动力工程学院，山东济南 250061
  2.西北电力设计院，陕西西安 710075
- 作者简介：
  
  张昊（1993—），男，博士研究生，zhag930502@163.com
  董勇（1967—），男，博士，教授，Dongy@sdu.edu.cn
- 基金信息：
  
  国家质检总局科技计划项目(2017QK178);山东省重点研发计划项目(2018GGX104010)
- DOI：10.11949/j.issn.0438-1157.20181274
  中图分类号： TK 124
- 收稿：2018-10-31，
  
  修回：2019-03-25，
  
  网络首发：2020-06-15，
  
  纸质出版：2019-06-05
- 稿件说明：
移动端阅览
张昊, 申凯, 赖艳华, 崔琳, 董勇. 氯化钙溶液喷雾闪蒸再生特性模拟及试验分析[J]. 化工学报, 2019, 70(6): 2269-2278

ZHANG Hao, SHEN Kai, LAI Yanhua, CUI Lin, DONG Yong. Simulation and experimental analysis of spray flash regeneration characteristics of CaCl₂ solution[J]. CIESC Journal, 2019, 70(6): 2269-2278 DOI: 10.11949/j.issn.0438-1157.20181274.
张昊, 申凯, 赖艳华, 崔琳, 董勇. 氯化钙溶液喷雾闪蒸再生特性模拟及试验分析[J]. 化工学报, 2019, 70(6): 2269-2278 DOI： 10.11949/j.issn.0438-1157.20181274.

ZHANG Hao, SHEN Kai, LAI Yanhua, CUI Lin, DONG Yong. Simulation and experimental analysis of spray flash regeneration characteristics of CaCl₂ solution[J]. CIESC Journal, 2019, 70(6): 2269-2278 DOI: 10.11949/j.issn.0438-1157.20181274. DOI：

摘要

燃煤电厂排放的烟气中含有大量水蒸气，氯化钙溶液循环除湿技术具有较好的除湿潜力。为了研究吸湿后的氯化钙溶液的再生性能，使用Matlab软件对液滴闪蒸过程进行了数值模拟，并搭建了氯化钙溶液喷雾闪蒸试验台。考察了闪蒸压力，溶液初始温度、浓度、溶液流量等因素对氯化钙溶液再生量的影响。试验结果表明了数学模型的准确性；溶液表面蒸气压和再生压力的差值以及溶液过热度是影响再生量的关键因素；闪蒸出口水蒸气经冷凝后Cl

–

含量不足0.2 mg/L。浓度为35%的溶液在再生温度为60℃、再生压力为10 kPa、流量为0.2 m

/h的情况下，可以实现5 kg/h以上的水分回收量。

Abstract

The f

lue gas emitted by coal-fired power plants contains a large amount of water vapor

and the calcium chloride solution circulating dehumidification technology has a good dehumidification potential. To study the regeneration performance of the CaCl

solution after dehumidification

the droplet flashing process was numerically simulated by using Matlab software

and a test bench on regeneration of CaCl

solution by spray flash evaporation was set up. The effects of flash pressure

initial solution temperature

concentration

and solution flow rate on the regeneration of CaCl

solution were investigated. The results showed the accuracy of the mathematical model. The difference between vapor pressure on the solution surface and the regeneration pressure and the superheat of the solution are the key factors affecting the regeneration efficiency. The concentration of Cl

in the condensed water after flashing is less than 0.2 mg/L. CaCl

solution with a concentration of 35%

a regeneration temperature of 60℃

a regeneration pressure of 10 kPa

and a flow rate of 0.2 m

/h will has a rate of more than 5 kg/h water recovery quality.

关键词

Keywords

references

姚增权 . 湿法脱硫烟气直接排放的环境问题探讨 [J ] . 电力科技与环保 , 2003 , 19 ( 2 ): 5 - 8 .

Yao Z Q . Investigation on environmental problems related to the direct discharge of an unheated moist plume [J ] . Electric Power Technology and Environmental Protection , 2003 , 19 ( 2 ): 5 - 8 .

熊莹莹 , 谭厚章 , 许伟刚 , 等 . 火电厂烟气潜热和凝结水回收的试验研究 [J ] . 热力发电 , 2015 , ( 6 ): 77 - 81 .

Xiong Y Y , Tan H Z , Xu W G , et al . Experimental study on latent heat and condensate recovery from flue gas in coal-fired power plants [J ] . Thermal Power Generation , 2015 , ( 6 ): 77 - 81 .

陈林 , 孙颖颖 . 回收烟气余热的特种耐腐蚀塑料换热器的性能分析 [J ] . 电机工程学报 , 2014 , 34 ( 17 ): 2778 - 2783 .

Chen L , Sun Y Y . Performance analysis of anti-corrosion heat exchangers made of special plastics for flue gas heat recovery [J ] . Proceedings of the CSEE , 2014 , 34 ( 17 ): 2778 - 2783 .

路源 , 徐震 , 肖云汉 . 开式吸收式热泵降膜吸收器实验研究 [J ] . 太阳能学报 , 2012 , 33 ( 3 ): 368 - 373 .

Lu Y , Xu Z , Xiao Y H . Experimental study on the internally-cooled absorber in open cycle absorption heat pump [J ] . Acta Energiae Solaris Sinica , 2012 , 33 ( 3 ): 368 - 373 .

Wang D X , Bao A , Kunc W , et al . Coal power plant flue gas waste heat and water recovery [J ] . Applied Energy , 2012 , 91 ( 1 ): 341 - 348 .

Chen H P , Zhou Y N , Cao S T , et al . Heat exchange and water recovery experiments of flue gas with using nanoporous ceramic membranes [J ] . Applied Thermal Engineering , 2017 , 110 : 686 - 694 .

吕扬 , 董勇 , 田路泞 , 等 . 燃煤电厂湿烟气的除湿特性 [J ] . 化工学报 , 2017 , 68 ( 9 ): 3558 - 3564 .

Lyu Y , Dong Y , Tian L N , et al . Dehumidification performance of wet flue gas in coal-fired power plant [J ] . CIESC Journal , 2017 , 68 ( 9 ): 3558 - 3564 .

Lars W , Roger H , Jonathan F . Flue gas purification and heat recovery: a biomass fired boiler supplied with an open absorption system [J ] . Applied Energy , 2012 , 96 ( 3 ): 444 - 450 .

Wang Z , Zhang X . Waste heat and water recovery from natural gas boilers: parametric analysis and optimization of a flue-gas-driven open absorption system [J ] . Energy Conversion and Management , 2017 , 154 : 526 - 537 .

Wang Z , Zhang X . Evaluation of a flue gas driven open absorption system for heat and water recovery from fossil fuel boilers [J ] . Energy Conversion and Management , 2016 , 128 : 57 - 65 .

魏璠 , 肖云汉 , 张士杰 , 等 . 喷淋吸收过程模型及实验研究 [J ] . 工程热物理学报 , 2008 , 29 ( 10 ): 1621 - 1624 .

Wei F , Xiao Y H , Zhang S J , et al . The model and experiment of heat and mass transfer in spraying absorption [J ] . Journal of Engineering Thermophysics , 2008 , 29 ( 10 ): 1621 - 1624 .

李美军 . 高湿度烟气水平管降膜吸收过程的传热传质研究 [D ] . 北京 : 中国科学院大学 , 2017 .

Li M J . Investigation of the heat and mass transfer of falling films over horizontal tubes in the presence of humid flue gas [D ] . Beijing : University of Chinese Academy of Sciences , 2017 .

钱俊飞 , 殷勇高 , 张小松 , 等 . 太阳能溶液再生性能 [J ] . 化工学报 , 2014 , 65 ( S2 ): 272 - 279 .

Qian J F , Yin Y G , Zhang X S , et al . Performance of solar liquid desiccant regeneration [J ] . CIESC Journal , 2014 , 65 ( S2 ): 272 - 279 .

Misha S , Mat S , Ruslan M H , et al . Review of solid/liquid desiccant in the drying applications and its regeneration methods [J ] . Renewable and Sustainable Energy Reviews , 2012 , 16 : 4686 - 4707 .

沈胜强 , 周士鹤 . 大型低温多效蒸发海水淡化装置传热过程热力损失分析 [J ] . 化工学报 , 2014 , 65 ( 9 ): 3366 - 3374 .

Shen S Q , Zhou S H . Analysis of thermodynamic losses of heat transfer process in large-scale LT-MED desalination plant [J ] . CIESC Journal , 2014 , 65 ( 9 ): 3366 - 3374 .

Shin H T , Lee Y P . Spherical-shaped ice particle production by spraying water in a vacuum chamber [J ] . Applied Thermal Engineering , 2000 , 20 ( 5 ): 439 - 454 .

Cheng W , Chen H . Effect of droplet flash evaporation on vacuum flash evaporation cooling: modeling [J ] . International Journal of Heat and Mass Transfer , 2015 , 84 : 149 - 157 .

Kim B S , Shin H T . Study on ice slurry production by water spray [J ] . International Journal of Refrigeration , 2001 , 24 ( 2 ): 176 - 184 .

Wu Y Y , Zhang X S , Zhang X L , et al . Modeling and experimental study of vapor phase-diffusion driven sessile drop evaporation [J ] . Applied Thermal Engineering , 2014 , 70 ( 1 ): 560 - 564 .

Owen I , Jalil J M . Heterogeneous flashing in water drops [J ] . International Journal Multiphase Flow , 1991 , 17 ( 5 ): 653 - 660 .

季璨 , 王乃华 , 崔峥 , 等 . Jakob 数在高温高压闪蒸过程中的作用及影响 [J ] . 化工学报 , 2016 , 67 ( 10 ): 4153 - 4159 .

Ji C , Wang N H , Cui Z , et al . Role and influence of characteristic Jakob number in high-temperature and high-pressure flash evaporation process [J ] . CIESC Journal , 2016 , 67 ( 10 ): 4153 - 4159 .

高文忠 , 时亚茹 . 多元盐除湿溶液的闪蒸再生机理研究进展综述 [J ] . 制冷 , 2012 , 31 ( 4 ): 24 - 29 .

Gao W Z , Shi Y R . Survey on flashing regeneration mechanism of multielement salt desiccant solution [J ] . Refrigeration , 2012 , 31 ( 4 ): 24 - 29 .

时亚茹 , 王民民 , 高文忠 . 氯化锂溶液液滴真空闪蒸影响因素的研究 [J ] . 制冷 , 2014 ， ( 2 ): 7 - 11 .

Shi Y R , Wang M M , Gao W Z . Study on the influence factor of the flashing of lithium chloride solution droplet in vacuum [J ] . Refrigeration , 2014 ， ( 2 ): 7 - 11 .

高文忠 , 时亚茹 . 氯化钙溶液液滴真空闪蒸再生的实验研究 [J ] . 真空科学与技术学报 , 2014 , 34 ( 9 ): 900 - 904 .

Gao W Z , Shi Y R . Concentrating CaCl 2 droplets by fast evaporation of water in vacuum [J ] . Chinese Journal of Vacuum Science and Technology , 2014 , 34 ( 9 ): 900 - 904 .

Gao W Z , Shi Y R . Experimental investigation on a new method of regenerating dehumidification solution-release solution droplet into vacuum [J ] . Applied Thermal Engineering , 2013 , 59 ( 1/2 ): 14 - 20 .

Conde M R . Properties of aqueous solutions of lithium and calcium chlorides: formulations for use in air conditioning equipment design [J ] . International Journal of Thermal Sciences , 2004 , 43 ( 4 ): 367 - 382 .

易晓勤 . 常用溶液除湿剂的性质研究 [D ] . 北京 : 清华大学 , 2009 .

Yi X Q . Study on the characteristics of conventional liquid desiccants [J ] . Beijing : Tsinghua University , 2009 .

赵云 . 太阳能液体除湿空调系统的研究 [D ] . 南京 : 东南大学 , 2002 .

Zhao Y . Research on the solar liquid desiccant air-condition system [D ] . Nanjing : Southeast University , 2002 .

Schrage R W . A Theoretical Study of Interface Mass Transfer [M ] . New York : Columbia University Press , 1953 .

杨世铭 , 陶文铨 . 传热学 [M ] . 北京 : 高等教育出版社 , 2013 : 113 - 123 .

Yang S M , Tao W Q . Heat Transfer [M ] . Beijing : Higher Education Press , 2013 : 113 - 123 .

GBT19923—2005. 城市污水再生利用——工业用水水质 [ S ] . 2005.GBT19923—2005. The reuse of urban recycling water—water quality standard for industrial uses[S ] . 2005 .

浏览量

下载量

CSCD

文章被引用时，请邮件提醒。

提交

工具集

关联资源

用于燃煤烟气除湿消白的湿电平板降膜模拟及试验研究

不同SK型静态混合器的流场特性及其混合效果分析

带有突扩比的新型流道结构对海水激活电池性能的影响

Ca（OH）2/CaO间接反应器储释热循环性能优化

液氢贮箱在轨排气的闪蒸特性与热力态调节规律研究